Aerotain Balloon Drone Hull Size: 2.8m diameter Balloon Design: 2 ply design Balloon Material: TPU internal, nylon external cover Gas Fill: helium gas Inquiry Us > SKU: skyballoon-aerostain-2.8m-balloon Category: Helium Products Tag: balloon hull Related products Quick View Quick View Automatic Ballonet Control System For Blimps and Aerostats Quick View Quick View High Pressure Helium Gas Inflator